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Posted by =?Utf-8?B?RGFu?= on July 15, 2008, 5:27 pm
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scanners where you just swipe your finger so it must have already had the
image of my fingerprint on the scanner. It sounds like someone would need to
clean the fingerprint scanner each time and it does indeed seem very easy to
fool. So much for the security of Biometrics at least cheap Biometric devices
"Juergen Nieveler" wrote:
>
> > How secure and safe is biometric technology? The reason I bring this
> > up is because I was able to log in using my finger with a band-aid
> > attached and this definitely makes me question the security and safety
> > of biometric technology at least as far as laptops go. I imagine
> > there probably is lots of articles on this already but I wanted the
> > opinions of this newsgroup. Thanks in advance for the replies.
>
> If this was one of those fingerprint readers where you simply put your
> finger on (as opposed to those where you rub your finger along the
> contact plate in a swipe motion), chances are that the camera inside
> picked up the latent fingerprint that was still on the glass - this is
> a common vulnerability of those cheap camera-based readers. All they do
> is notice "Oh, something is pushing on the glass, and I recognise the
> pattern" - if the person who last used it had greasy fingers, the
> fingerprint would still be on the glass, so putting something on the
> glass that doesn't have OTHER fingerprints will force the camera to use
> the weak fingerprint image still visible to it...
>
> The swipe-type readers are safer in that there can't be an image left
> on the reader... but many of them still can be fooled by a fake
> fingerprint made by taking the fingerprint off something somebody
> touched (lots of how-to's available for that...).
>
> Juergen Nieveler
> --
> A feature is a bug with seniority.
>
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